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O.  E.  S.  LiBRAHV.  GOK  i^  n  O  ,  ^  S 


'VWK 


CoEBCtlciit  Apiciiltiiral  Experiineiit  Station 


BUT.T.KTTN    TsTo.   99. 


JUNE,    1889. 


FERTILIZER    ANALYSES. 


Wool  Waste. 


2590.  Received  from  P.  M.  Augur,  Middlefield.  It  appeared 
to  be  made  up  mostly  of  '^  tag-locks,"  unwashed  wool  containing 
considerable  sheep  dung. 

Analysis. 

Nitrogen 2.87 

Phosphoric  acid _  .81 

Potash 5.38 

With  nitrogen  reckoned  worth  8  cents,  phosphoric  acid  7  cents 
and  potash  47^  cents  per  pound,  the  total  valuation  will  be  1 10.57 
per  ton.  This  slowlj'^  decomposing  fertilizer  is  especially  suitable 
for  fruit  trees  and  grape  vines  or  grass,  where  an  enduring  rather 
than  quick  effect  is  desirable. 

DAisrAGED  Corn  Meal. 

2496.  Sample  of  a  car-load,  56,000  pounds,  which  Avas  offered 
to  parties  in  Suffield  for  |50.00.  It  contained  1.32  per  cent,  of 
nitrogen,  about  .60  per  cent,  of  phosphoric  acid  and  .40  per  cent, 
of  potash.  In  one  ton  of  the  meal,  costing  .|1.80,  there  are 
therefore  : 


26.4  pounds  of  nitrogen  at  1 5  cents,  worth $3.96 

12.0         "  phosphoric  acid  at  7  cents,  worth .84 

8.0         "  potash  at  4^  cents,  worth .36 

Ton- valuation $5.16 

The  margin  of  $3.36  (valuation  less  cost)  is  not  large  enough 
to  warrant  transportation  to  any  great  distance. 

This  meal  has  about  twice  as  much  niti'ogen  as  good  stable  or 
yard  manure,  and  this  nitrogen  is  doubtless  at  least  twice  as 
available  or  effective  as  that  of  stable  manure  ;  it  also  contains 
nearly  the  same  proportions  of  phosphoric  acid  and  potash  as 
stable  manure.  Heavy  applications  would  for  a  time  greatly  im- 
prove the  texture  and  water-holding  capacity  of  light  sandy  soils. 

Cotton  Seed  Meal  and  Castor  Pomace. 

2492.  Cotton  Seed  Meal.  Sold  by  C.  L.  Spencer,  Suffield. 
Sampled  and  sent  by  Allen  Wilson,  Suffield. 

2494.     Cotton  Seed  Meal.     Sold  by  Allen  Wilson,  Suffield. 

2596.  Cotton  Seed  Meal.  Made  by  Little  Rock  Mills,  Ark. 
Sold  by  Olds  &  Whipple,  Hartford. 

2584.  Castor  Pomace.  Made  by  H.  J.  Baker  &  Bro.,  Pearl 
St.,  N.  Y.  Sampled  by  Station  agent  from  stock  of  W.  F.  An- 
dross,  East  Hartford,  and  W.  W.  Clark,  Simsbury. 

2595.  Castor  Pomace.  Made  by  Red  Seal  Castor  Oil  Co., 
St.  Louis,  Mo.     Sold  by  Olds  &  Whipple,  Hartford. 

Analyses  and  Valuations. 

2492  2494  2596  2584  2595 

Nitrogen 6.87  6.65  7.50  5.60  5.54 

Phosphoric  acid 3.22  3.48  3.49  1.88  2.12 

Potash 2.03  1.94  2.06  1.04  1.04 

Costperton $27.00  27.00  26.00  25.00         25.00 

Nitrogen  costs  per  pound 14.6  cts.     14.9  cts.     12.4  cts.     18.9  cts.     18.7  cts. 

Reckoning  phosphoric  acid  and  potash  at  7  and  6  cents  per 
pound,  respectively, — the  rates  used  in  the  valuation  of  mixed 
fertilizers, — nitrogen  in  cotton  seed  meal  costs  from  12.4  cents  to 
14.9  cents  per  pound,  and  in  castor  pomace  about  19  cents.  The 
price  of  castor  pomace  has  advanced  |5.00  a  ton  since  last  year, 
and  in  consequence  it  has  become  one  of  the  most  expensive 
sources  of  nitrogen,  while  last  year  it  was  one  of  the  cheapest. 
Cotton  seed  meal  has  also  advanced  in  price  but  still  remains  the 
cheapest  source  of  available  nitrogen. 


Bo  MO    .M.Wl'UKS.  ' 

'i'lic  rollowiiii;-  Ui\)\v  coiiliiiiis  iill  the  Jiiialyses  of  hone  that  have 
Ik'c'Ii  iii:ul('  (»ii  sain])l('s  (lolkictcd  l»y  Station  a;^(!iit.s  since  liiillctin 
No.  07  was  issued. 

Since  the  establislinu'nt  of  t  liis  Station,  twelve  years  a^o,  there 
has  been  a  great  iniprovenieiit  in  the  merlianioal  condition  of  tlie 
l)one  manures  sold  in  Conneeticuit,  as  is  seen  from  tlie  f(dh)vving 
tabki  which  gives  the  average  fineness  of  all  those  wliich  have 
been  analyzed  here  during  tliat  })eriod  : 

Mechanical  Analysis. 


Yonr. 

Niimlier  of 
samples. 

Smaller  than 
A  inch. 

Between 
B  and  /a  inch. 

F/arger  than 
,',  inch. 

1877. 

i} 

53 

20 

27 

1878. 

23 

55 

34 

11 

1879. 

11 

59 

35 

6 

1880. 

13 

66 

27 

7 

1881. 

18 

56 

31 

13 

1882. 

19 

62 

33 

5 

1883. 

23 

56 

35 

9 

1884. 

29 

57 

33 

10 

1885. 

30 

58 

36 

6 

1886. 

16 

65 

32 

3 

1887. 

20 

84 

16 

0 

1888. 

26 

74 

23 

3 

1889. 

16 

71 

29 

0 

Within  the  last  four  years  few  samples  have  contained  frag- 
ments which  would  not  pass  holes  ^  of  an  inch  in  diameter  and  a 
larger  proportion  than  formerly  has  been  of  the  two  iinest  grades. 

The  fertilizing  value  of  fine  bone  is  much  greater  than  that  of  coarse 
bone.  The  latter  may  lie  in  the  ground  for  years  while  very  fine  bone 
is  readily  decomposed  and  taken  up  by  plants.  The  improved  condition 
and  increased  value  of  our  bone-manures  is  to  some  extent  a  result  of 
the  action  of  this  Station  which  in  the  year  1879  first  carried  into  effect 
the  method  of  valuation  based  on  the  mechanical  as  well  as  the  chem- 
ical analysis.  Nitrogen  in  the  finest  bone  is  now^  w^orth  i6i  cents  per 
pound,  while  that  in  the  coarsest  bone  is  valued  only  at  8^  cents,  and 
phosphoric  acid  is  valued  at  7  and  4  cents  in  the  two  grades  respect- 
ively. Very  finely  ground  bone  is,  at  present,  one  of  the  cheapest 
sources  of  quickly  available  nitrogen  and  phosphoric  acid. 


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Digitized  by  the  Internet  Archive 

in  2011  with  funding  from 

LYRASIS  members  and  Sloan  Foundation 


http://www.archive.org/details/fertilizeranalys1889newh 


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